umx (version 1.9.1)

GFF: Twin data: General Family Functioning, divorce, and wellbeing.

Description

Measures of family functioning, happiness and related variables in twins, and their brothers and sisters. (see details)

Usage

data(GFF)

Format

A data frame with 1000 rows and 8 variables:

Details

Several scales in the data are described in van der Aa et al (2010). General Family Functioning (GFF) refers to adolescents' evaluations general family health vs. pathology. It assesses problem solving, communication, roles within the household, affection, and control. GFF was assessed with a Dutch translation of the General Functioning sub-scale of the McMaster Family Assessment Device (FAD) (Epstein et al., 1983).

Family Conflict (FC) refers to adolescents' evaluations of the amount of openly expressed anger, aggression, and conflict among family members. Conflict sub-scale of the Family Environment Scale (FES) (Moos, 1974)

Quality of life in general (QLg) was assessed with the 10-step Cantril Ladder from best- to worst-possible life (Cantril, 1965).

zyg_6grp

Six-level measure of zygosity: 'MZMM', 'DZMM', 'MZFF', 'DZFF', 'DZMF', 'DZFM'

zyg_2grp

Two-level measure of zygosity: 'MZ', 'DZ'

divorce

Parental divorce status: 0 = No, 1 = Yes

sex_T1

Sex of twin 1: 0 = "male", 1 = "female"

age_T1

Age of twin 1 (years)

gff_T1

General family functioning for twin 1

fc_T1

Family conflict sub-scale of the FES

qol_T1

Quality of life for twin 1

hap_T1

General happiness for twin 1

sat_T1

Satisfaction with life for twin 1

AD_T1

Anxiety and Depression for twin 1

SOMA_T1

Somatic complaints for twin 1

SOC_T1

Social problems for twin 1

THOU_T1

Thought disorder problems for twin 1

sex_T2

Sex of twin 2

age_T2

Age of twin 2

gff_T2

General family functioning for twin 2

fc_T2

Family conflict sub-scale of the FES

qol_T2

Quality of life for twin 2

hap_T2

General happiness for twin 2

sat_T2

Satisfaction with life for twin 2

AD_T2

Anxiety and Depression for twin 2

SOMA_T2

Somatic complaints for twin 2

SOC_T2

Social problems for twin 2

THOU_T2

Thought disorder problems for twin 2

sex_Ta

Sex of sib 1

age_Ta

Age of sib 1

gff_Ta

General family functioning for sib 1

fc_Ta

Family conflict sub-scale of the FES

qol_Ta

Quality of life for sib 1

hap_Ta

General happiness for sib 1

sat_Ta

Satisfaction with life for sib 1

AD_Ta

Anxiety and Depression for sib 1

SOMA_Ta

Somatic complaints for sib 1

SOC_Ta

Social problems for sib 1

THOU_Ta

Thought disorder problems for sib 1

sex_Ts

Sex of sib 2

age_Ts

Age of sib 2

gff_Ts

General family functioning for sib 2

fc_Ts

Family conflict sub-scale of the FES

qol_Ts

Quality of life for sib 2

hap_Ts

General happiness for sib 2

sat_Ts

Satisfaction with life for sib 2

AD_Ts

Anxiety and Depression for sib 2

SOMA_Ts

Somatic complaints for sib 2

SOC_Ts

Social problems for sib 2

THOU_Ts

Thought disorder problems for sib 2

References

van der Aa, N., Boomsma, D. I., Rebollo-Mesa, I., Hudziak, J. J., & Bartels, M. (2010). Moderation of genetic factors by parental divorce in adolescents' evaluations of family functioning and subjective wellbeing. Twin Research and Human Genetics, 13(2), 143-162. doi:10.1375/twin.13.2.143

Examples

# NOT RUN {
# Twin 1 variables (end in '_T1')
data(GFF)
umx_names(GFF, "1$") # Just twin 1 variables
str(GFF) # first few rows

m1 = umxACE(selDVs= "gff", sep = "_T",
	mzData = subset(GFF, zyg_2grp == "MZ"), 
	dzData = subset(GFF, zyg_2grp == "DZ")
)

# How I coded this data from the Boulder example

# }